CVE-2022-33913

Exp

In Mahara 21.04 before 21.04.6, 21.10 before 21.10.4, and 22.04.2, files can sometimes be downloaded through thumb.php with no permission check.

Published: 2022-06-20 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-33913 is rated High Exploit Risk (65.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.01%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-33913

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-33913

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-17 0.91% 1.01% +0.10%
2 2026-06-15 0.24% 0.91% +0.67%
3 2025-06-28 — 0.24% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-33913

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2022-33913

OS Trackers for CVE-2022-33913

vendor priority summary link
ubuntu medium CVE-2022-33913 medium priority: Ubuntu including 1 source packages (mahara), 1 status rows across 1 suites (upstream): not-affected 1. https://ubuntu.com/security/CVE-2022-33913

Affected software / configurations for CVE-2022-33913

Vendor Product Version Raw CPE
mahara mahara >= 21.04.0, < 21.04.6 cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*
mahara mahara >= 21.10.0, < 21.10.4 cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*
mahara mahara 22.04.2 cpe:2.3:a:mahara:mahara:22.04.2:*:*:*:*:*:*:*

References for CVE-2022-33913

URL Tags
https://mahara.org/interaction/forum/topic.php?id=9138 Exploit Issue Tracking Third Party Advisory Vendor Advisory
cvelogic Threat Intelligence